From the Simulacra Infiltrators introduced in Keep Your Enemies Closer.
Shield Level: 100 (200) Your base Melee Defense must be at least 180 to wield this item. Casts the following spells: Impenetrability IV, Coordination Self IV, Strength Self IV Armor Level: 100 (200) Slashing: Average (100) (200) Piercing: Average (80) (160) Bludgeoning: Average (120) (240) Fire: Average (60) (120) Cold: Average (60) (120) Acid: Average (100) (200) Electric: Average (60) (120) Activation Requirements: Arcane Lore: 35, Melee Defense: 180 Spellcraft: 220 Mana: 650 Mana Cost: 1 point per 30 seconds.